Bug 1461838 - RFE: Add "process" rule for recommend_profile
RFE: Add "process" rule for recommend_profile
Status: ASSIGNED
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: tuned (Show other bugs)
7.4
x86_64 Linux
unspecified Severity medium
: rc
: ---
Assigned To: Jaroslav Škarvada
qe-baseos-daemons
: FutureFeature, Patch, Upstream
Depends On:
Blocks: 1465887 TUNED-7.5-REBASE
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Reported: 2017-06-15 08:34 EDT by jmencak
Modified: 2017-08-09 12:05 EDT (History)
3 users (show)

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Description jmencak 2017-06-15 08:34:11 EDT
Description of problem:
There is currently no way of "recommend"ing a profile based on processes running on the system.  I believe it would be useful if a "tuned" user could specify (in /etc/tuned/recommend.conf) something like

[my-profile-based-on-existing-process-name]
process=<regex>

Multiple process=<regex> key-value pairs within a profile section would serve as a logical AND condition, i.e. the profile would only be selected if all processes were running on the system.

Version-Release number of selected component (if applicable):
tuned-2.8.0-4.el7.noarch

Additional information:
At the moment the motivation for this is selecting a tuned profile for an Openshift router based on the presence of a haproxy process, but I'm sure there might be other use cases.
Comment 2 Jaroslav Škarvada 2017-06-15 10:24:59 EDT
I think it will be beneficial.

Unfortunately the current parser (configobj) doesn't allow multiple keywords (i.e. multiple 'process=regex' lines), but it shouldn't be problem to differentiate it by unique suffix, e.g.:

process=regex1
process1=regex2
process2=regex3
Comment 3 Jaroslav Škarvada 2017-06-15 12:24:01 EDT
Upstream patch adding this functionality:
https://github.com/redhat-performance/tuned/commit/5a2ea01f719c096dd8abdf3050e8b34b9d30ce2b
Comment 5 jmencak 2017-06-16 03:32:05 EDT
Tested upstream patch in #3, works fine.

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